Reviews and best moisturizing serums : a doctor's classification.
The moisturizing serum has become a key step in skincare routines. Lighter than a cream, concentrated in active ingredients, it prepares the skin and reinforces the cutaneous barrier. But how do you distinguish a good serum from a marketing product, and which one to choose according to your profile? This ranking crosses BeautyDecoded algorithmic scores, actual feedback from app users and analysis of INCI formulations to identify the best moisturizing serums available.
What is the role of a moisturizing serum?
The purpose of a moisturizing serum is to reinforce the skin barrier and provide targeted hydration, but it is not intended to replace a cream. Concentrated in active ingredients (hyaluronic acid, niacinamide, ceramides), it is rapidly absorbed thanks to its fluid texture. The hydration it provides must then be sealed by a richer skincare product. day cream, night cream or sun cream.
There are moisturizing serums for every skin type: normal, oily, sensitive, dry or prone to redness. So before choosing, it's essential to define your needs precisely.
Our method: how the ranking is established
Each serum is evaluated according to BeautyDecoded algorithmic scores (four skin types and four issues: anti-aging, imperfections, redness, blemishes), the average score and volume of reviews from the app's users, as well as a deciphering of the INCI list. Sensitivity verdict applies Dr David's rule, which signals any potential risk of irritation based on a negative sensitive skin score.
The ranking of best moisturizing serums.
| Serum | Note BD | Notice (n) | Key score |
|---|---|---|---|
| 🏆 SVR Ampoule Hydra B3 | 4,44 | 54 | Redness 81.6 - niacinamide 5 % + triple AH |
| 🥈 Avene Hyaluron Activ B3 | 4,20 | 5 | Redness 83.3 - niacinamide 6 % + AH |
| 🥉 Vichy Mineral 89 Probiotic | 4,71 | 7 | Hydration 91 - volcanic water + probiotics |
| The Ordinary HA 2% + B5 | 3,88 | 44 | Moisturizing 89.6 - AH + ceramides, low price |
| Nooance 5 hyaluronic acids | 4,36 | 18 | Anti-ageing 88.4 - 5 AH + niacinamide |
| The Ordinary Soothing & Barrier | 4,56 | 18 | Redness 71.4 - centella, reactive skin |
| Geek & Gorgeous HA5 Rich | 4,72 | 9 | Sensitive skin +6 - 5 AH, maximum tolerance |
The seven serums under the microscope.
SVR Ampoule Hydra Vitamin B3
With a purified, fragrance-free composition of just a dozen ingredients, this serum is one of the most versatile in the range. Niacinamide (vitamin B3), integrated with 5 %, strengthens and repairs the skin barrier, regulates sebum and has a documented action on blemishes and inflammation. It is combined with three hyaluronic acids of different molecular weights, which act at several levels of the epidermis for deep hydration and a plumping effect. It's also the most popular moisturizing serum in the range, with 54 notices, a sign of strong resonance with users.
Excellent all-round moisturizing serum, suitable for almost all skin types, with a purified, fragrance-free formula.
Slightly sticky texture reported by some users.
It's a complete moisturizing and anti-aging base, a relevant option for most profiles, including those who can't use retinoids. Niacinamide at 5 % with triple AH offers a remarkable tolerance profile, even if the sensitive skin score of -0.5 calls for slight caution. The only recurring complaint is that the texture is sometimes sticky.
«Super serum that moisturizes dry skin. Only negative point: a little sticky.»
«Applied in the evening, perfect before the nourishing cream and retinol.»
«Plumping effect and protection against pigmentation spots.»
Avene Hyaluron Activ B3
Here, the Avène dermatological laboratories combine 6 % niacinamide with hyaluronic acid in two molecular weights and adenosine, to target the signs of aging and reinforce the barrier. The formula is particularly short (eight ingredients), fragrance-free, and designed for sensitive skin, including around the eyes. The scores redness (83.3) and anti-aging (73.1) are among the best in the ranking, consistent with the high concentration of niacinamide.
Very well formulated, moisturizes and soothes, excellent redness profile and tolerance for sensitive skin.
Moderate corrective anti-ageing effect; price a little high for the volume.
A very well formulated serum that moisturizes, soothes and has a remarkable redness score. As users note, this is above all an excellent moisturizing serum to be applied to damp skin: for a marked corrective anti-aging effect, more targeted active ingredients are still needed as a complement.
«Moisturizes superbly, a must-have.»
«Very pleasant and plumping when applied to damp skin.»
«Good hydration, plumped skin, but expensive for correct effects without more.»
Vichy Mineral 89 Probiotic Fractions
This water-textured serum is based on Vichy volcanic water, rich in minerals and trace elements, complemented by niacinamide, hyaluronic acid and probiotic fractions designed to rebalance the skin's microbiota. A formula designed to repair and strengthen the barrier while restoring radiance to the complexion. Hydration scores at 91 on all four skin types and neutral sensitive skin score: a universal profile.
Repairs and strengthens the skin barrier, restores radiance, universal and well-tolerated profile.
May be insufficient alone on very dehydrated skin; occasional fluffing.
A relevant option for repairing and strengthening the skin barrier while intensely moisturizing. Its universal profile and good tolerance make it an easy serum to integrate. On very dehydrated skin, however, some users find it insufficient on its own, and occasional fluffing is reported.
«Good moisturizer with probiotics and niacinamide. I've been using it for two years and couldn't live without it.»
«Moisturizes well and reduces redness.»
«Not moisturizing enough for my dehydrated skin and it fluffs up.»
The Ordinary Hyaluronic Acid 2% + B5 (with ceramides)
The reformulated version of the famous The Ordinary serum now combines several forms of hyaluronic acid, panthenol (B5) and ceramides for sustained hydration and barrier reinforcement. The formula remains minimalist and accessible. Homogeneous hydration scores at 89.6 and a slightly positive sensitive skin score (+0.5). Please note: some users report a tightening effect, linked to application on dry skin.
Effective moisturizing base at a very low price, simple formula with ceramides.
No targeted action; feels tight when applied to dry skin.
A relevant option as a low-budget moisturizing base. As users remind us, it's best applied to damp skin to avoid any feeling of tightness and maximize the effect. It doesn't treat any specific problem: it's a pure moisturizer, to be completed as needed.
«I've been using it for several years now, and I'm delighted with it.»
«Very moisturizing and not sticky. Perfect for moisturizing on a budget.»
«The moisturizing isn't great for me, my skin feels tight after application.»
Nooance 5 hyaluronic acids
This serum from French brand Nooance combines five forms of hyaluronic acid with different molecular weights, niacinamide, panthenol and hydrolyzed yeast extract. The aim: multi-level hydration combined with a smoothing, plumping effect. Anti-ageing score of 88.4 (the highest in the ranking) and a slightly positive skin score (+0.25). The brand also boasts the best engagement rate in the database.
Complete multi-level moisturizing, smoothing and plumping effect, very popular French brand.
Value for money discussed by some when faced with cheaper alternatives.
A relevant option for those seeking complete hydration with a smoothing bonus. Apply to moistened skin to take advantage of the sponge effect of the five HAs. Many users report good synergy with retinol as part of an evening routine.
«I don't usually like hyaluronic acid serums, but this one won me over: it moisturizes and smoothes.»
«Smoother, plumper skin after two months, wrinkles less visible.»
«Effective in combination, but you can find an equivalent for less.»
The Ordinary Soothing & Barrier Support Serum
This serum combines niacinamide, centella asiatica (asiaticoside, asiatic acid, madecassic acid) and barrier lipids (ethyl linoleate). A formula designed to soothe and support the cutaneous barrier, ideal to accompany irritating active ingredients such as retinoids or AHAs. Redness score of 71.4 and excellent hydration scores: a benchmark buffer serum for reactive skin.
Effectively soothes and protects the skin barrier, ideal as a complement to irritating active ingredients.
Slightly sticky effect for some profiles.
A relevant option as a soothing serum, especially for skin irritated by tretinoin or exfoliating acids. Users describe it as a genuine protective barrier buffer. A slight sticky effect is sometimes mentioned.
«Soothes skin irritated by tretinoin and AHAs. A must-have in your kit.»
«I use it before retinol, it protects my skin barrier well.»
«It soothes even the most sensitive skin.»
Geek & Gorgeous HA5 Rich
This serum combines five forms of hyaluronic acid with tremella extract (a highly humectant fungus) and panthenol. The formula is minimalist and geared to maximum tolerance. Sensitive skin score +6 It's by far the best in the ranking on this criterion, a sign of exceptionally gentle formulation.
Maximum tolerance (sensitive score +6), effective moisturizing, very affordable price.
Action limited to hydration; no effect on established wrinkles.
A relevant option for the most reactive skin types seeking pure, well-tolerated hydration, at a very affordable price. As with other HA serums, the action remains moisturizing: for established wrinkles, you'll need to supplement with more targeted active ingredients.
«Hyper moisturizing, exceptional for the price.»
«Good hyaluronic acid serum with 5 molecular weights, very affordable.»
«Light and inexpensive formulation, great for a small budget.»
How do I apply my moisturizing serum?
To optimize the serum's effectiveness, the skin must be clean and free of any residue. After cleansing, place a few drops in the palm of your hand, then spread them over the face with your fingertips, using light tapping motions to encourage penetration. As a serum is highly concentrated, a small dose is sufficient.
Essential point for hyaluronic acid serums: apply to damp skin. This maximizes water absorption and avoids the opposite effect of tightness. Then wait a few moments before sealing in moisture with a cream, or sun cream in the morning.
Which moisturizing serum choose for you ?
Normal to combination skin, versatility
SVR Ampoule Hydra B3 or Vichy Mineral 89 moisturizes, brightens and reduces redness in a single step.
Sensitive or reactive skin
Geek & Gorgeous HA5 Rich (maximum tolerance) or The Ordinary Soothing & Barrier, especially if you use irritating active ingredients such as retinol.
Small budget
The Ordinary HA 2% + B5 or Geek & Gorgeous HA5 Rich two excellent moisturizing bases for under €15.
Smoothing and anti-aging effect
Nooance 5 hyaluronic acids or Avene Hyaluron Activ B3, To be combined with a targeted active ingredient (retinol, vitamin C) at another stage of the routine.
Objective your serum choice with BeautyDecoded application.
BeautyDecoded is a mobile application for cosmetic analysis using artificial intelligence. It deciphers INCI formulations and generates compatibility scores for 80 skin types and profiles. It does not constitute a medical consultation, but helps to objectify the choice of a serum according to a precise skin profile.
Discover the applicationAll about moisturizing serums.
Does a moisturizing serum replace a cream?
Should the serum be applied to dry or damp skin?
Which serum should you choose for sensitive skin?
Hyaluronic acid or niacinamide: what's the difference?
Can I layer several moisturizing serums on top of each other?
What is the BeautyDecoded application?
Information for educational purposes only. It does not replace a medical consultation. BeautyDecoded algorithmic scores do not prejudge the individual tolerance of each user: a test on a small area and, in case of doubt, the advice of a dermatologist are still recommended. The opinions displayed come from BeautyDecoders and have not been verified. No commercial partnership links this page to the marquess mentioned. © BeautyDecoded - Independent information. Dr Sylvain David, Plastic and aesthetic surgeon - Founder of BeautyDecoded.